Volume 419, Number 2, May IV 2004
|Page(s)||563 - 582|
|Section||Interstellar and circumstellar matter|
|Published online||03 May 2004|
Planetary nebulae near the Galactic center: Identifications *
WIYN Observatory, PO Box 26732, Tucson, AZ, 85726, USA
2 Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium
Corresponding author: G. H. Jacoby, firstname.lastname@example.org
Accepted: 3 February 2004
We surveyed the central degrees of the Galactic center for planetary nebulae in the light of [S III] and found 94 PNe that were not previously known, plus 3 that were previously identified as possible candidates. For 63 of these 97 objects, we obtained spectra that are consistent with highly reddened PN while the other 34 could not be recovered spectroscopically and remain unverified. Of the 94 candidates, 54 and 57 were detected via radio at 3 and 6 cm, respectively. An additional 20 PNe candidates were found during follow-up Hα imaging but have not yet been verified spectroscopically. Based on the properties of IRAS sources in this region of the Galaxy, and on the total luminosity of the Galactic bulge, the expected number of PNe is ~250, only 50% more than the 160 PNe candidates now known. Thus, surveys for PNe in the bulge are approximately two-thirds complete with the remainder likely hidden behind dust.
Key words: ISM: planetary nebulae: general / Galaxy: bulge / methods: observational
© ESO, 2004
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